The recording studio is a place where music magic happens, and sometimes an unexpected guest can pop up. In this Fuse interview, A$AP Ferg recalls the time when Katy Perry randomly appeared at the recording session of his "Hungry Ham" collaboration with Skrillex. He told us:

"We actually recorded that song in his house, and Katy Perry walked in my session. I didn't even know it was her at first, I was just rapping and doing my thing. She came upstairs and she was sitting next to my uncle...I was like, 'Oh shit!' I didn't even know. It was just crazy how things happen."